from christopher cokinos - hope is the thing with feathers
"the statistical palentologist david raup reminds us that 99.9% of all species that have ever lived on the earth are extinct and that, on average, a plant or animal species vanishes after about 4 million years."
"...the great evolutionary theorist alfred russel wallace would write, 'the most effective agent in the extinction of species is the pressure of another species.'"
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